`MqttGetReceivedPacket` (FB)

FUNCTION_BLOCK MqttGetReceivedPacket EXTENDS AbbETrig3

Get the contents of a packet received from an established connection to an MQTT broker

InOut:

Scope	Name	Type	Initial	Comment
Input	`Conn`	POINTER TO MQTT_CONNECTION	0	Pointer to valid connection struct created by MqttConnect.
	`Payload`	POINTER TO BYTE	0	Pointer to the data area where the received packet can be stored.
	`MaxPayloadSize`	`DWORD`	0	Size of the data area where the received packet can be stored.
Output	`ErrorID`	ERROR_ID	ERROR_ID.MQTT_ERR_NO_ERROR	Error code description
	`Topic`	`STRING(Constants.MQTT_MAX_TOPIC_LEN)`	Defaults.MQTT_DEFAULT_EMPTY	Topic where the payload data belongs to.
	`PayloadLen`	`DWORD`	0	Actual length of the payload.

MqttGetReceivedPacket (FB)